Yeah, at least in my oven it's still an incandescent bulb, used mine recently to speed up drying, top of the fridge is going to be warmer as well.

That said, I've just kinda rolled with the colder kitchen recently, takes longer but I tend to do linger proofs anyhow. I've had good luck with a heating pad on top of the tub or a box for times I want something in a day.